| Erkrath to Cicero (Illinois) | 4,227.12 mi (6,802.89 km) |
| Erkrath to Cimarron Hills (Colorado) | 4,972.73 mi (8,002.83 km) |
| Erkrath to Cincinnati (Ohio) | 4,236.12 mi (6,817.38 km) |
| Erkrath to Cinco Ranch (Texas) | 5,146.77 mi (8,282.93 km) |
| Erkrath to Circleville (Ohio) | 4,153.45 mi (6,684.34 km) |
| Erkrath to Citrus (California) | 5,657.10 mi (9,104.22 km) |
| Erkrath to Citrus Heights (California) | 5,481.44 mi (8,821.52 km) |
| Erkrath to Citrus Park (Florida) | 4,709.83 mi (7,579.73 km) |
| Erkrath to Claiborne (Louisiana) | 4,863.15 mi (7,826.49 km) |
| Erkrath to Claremont (California) | 5,651.35 mi (9,094.96 km) |
| Erkrath to Claremont (New Hampshire) | 3,569.30 mi (5,744.23 km) |
| Erkrath to Claremore (Oklahoma) | 4,793.30 mi (7,714.08 km) |
| Erkrath to Clarksburg (Maryland) | 3,949.91 mi (6,356.77 km) |
| Erkrath to Clarksburg (West Virginia) | 4,067.45 mi (6,545.93 km) |
| Erkrath to Clarksdale (Mississippi) | 4,715.21 mi (7,588.40 km) |
